
1. Cartridge Heater Working Principle
Electric cartridge heater, also known as single-end tubular heater, one end can heat, another end is cold end.
It is made of a metal tube put into the resistance alloy wire as the heating materials, the alloy wire is filled with good insulation high purity magnesium oxide as filler, the product has a big power, high thermal efficiency, fast heat dissipation characteristics.
2. Cartridge Heater Characteristics
1>.USA imported MgO, it can ensure the heating uniformity
2>.Japan resistance wire, good heating performance.
3>.Alloy sheath for high corrosion resistance.
3. Cartridge Heater Parameters
| Product Name | Electric Cartridge Heater | ||
| Leakage current | <0.5mA | ||
| Insulation resistance | ≥5M | ||
| Ground resistance | <0.1Ω | ||
| Voltage resistance | no electric breakdown for 1 minute under 1500v | ||
| Temperature endurance | 100~1200 degree C | ||
4. Cartridge Heater Structure

5. Cartridge Heater Leadwires:
1>.Silicone rubber
2>. TF
3>. Metal hose
4>. Metal screen Braided
6. Different type cartridge heaters are available.
1>. High density cartridge heaters
2>. Low-mediem density cartridge heaters
3>. Split cartridge heaters
4>. Right angle Cartridge heaters
5>. Distributed wattage cartridge heaters

7. Cartridge Heater Application
| Water Heating | We recommend 10 watts per square centimetre when cartridges are to be immersed in water because the water removes the energy from the element very effectively. Commonly used as a chemical solutions heater. | ||
| Oil Heating | Commonly used as engine sump heaters. When heating some oils, only 2 watts per square centimetre can be used otherwise the high cartridge heater surface temperature causes the oil to oxidise and carbon to be built-up on the surface of the heater. When this occurs, the carbon can thermally insulate the cartridge heater, causing the unit to heat up internally, often resulting in electrical failure. | ||
| Air Heating | Elements of approximately 1 watt per square centimetre are suitable for convection air heating, eg. Anti-condensation heaters. | ||
| Die Heating | Manifolds, hot runners and torpedoes. Packaging Hot melt glue applicators. | ||
8. Cartridge Heaters Package


9. How to order?
Please offer these information:
| 1.Type of Cartridge Heater (shape, striaght or right angle) |
| 2.Diameter of Tube |
| 3.Overall length for Cartridge Heaters. |
| 4.Wattage & Voltage |
| 5.Lead type ( glass fibre / PTFE ) & lead length. |
| 6.The lead wire length. |








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